Electric water-heater



M. SIMON.

ELECTRIC WATER HEATER.

APPLICATION FILED 050.7.1915.

Patented Aug. 22, 1916.

MAURICE SIMON, OF ST. LOUIS, MISSOURI.

ELECTRIC WATER-HEATER.

Specification of Letters Patent.

Patented Aug. 22, 1916.

Application filed December 7, 1915. Serial No. 65,484.

To all whom it may concern:

Be it known that I, MAURICE SIMON, a citizen of the United States,residing at the city of St. Louis and State of Missouri, have invented anew and useful Electric Water Heater, of which the following is aspecification. 7

This invention relates to improvements in electric water heaters, andconsists in the novel design, arrangement and combination of partshereinafter more fully disclosed.

An object of the invention is to produce a durable water heater,arranged to be placed in a water supply conduit and supported thereby,which will be economical in construction and in operation. I

Another object of the invention is to provide a water heater comprisingchambers so arranged as to spread the volume of water entering theheater into a thin sheet, with a resistance circuit disposed in the pathof the flow of the water.

Another object of the invention is to provide a heater comprising achamber divided so as to cause the fluid entering the same to spreadinto a thin sheet, with an inlet conduit so disposed that the water willenter adjacent to the top of the heater and pass downwardly and upwardlyand be discharged from an outlet conduit at the apex of the heater, witha resistance circuit disposed in the path of flow of the fluid.

Additional advantages and features attainable from the construction willbe apparent to those skilled in the art without specific mention fromthe following detailed description of an embodiment of the inventiontaken in connection with the illustration thereof in the drawing, inwhich Figure 1 is a vertical section through a heater embodying thefeatures of the present invention. Fig. 2 is a cross section through theheater embodying the present invention taken substantially on the line2-2 of Fig. 1. Fig. 3 is a diagrammatical view illustrating theresistance circuit embodied in connection with the heater of the presentinvention.

In the embodiment of the invention illustrated in the drawings,'the'heating chamber is formed from a bottom plate 1 and a top plate 2, saidplates being hemispherical in form, the plate 2 having a greater radiusthan the plate 1 so that there will be a space therebetween when theplates are secured together. The plate 1 has extending from its loweredges an annular flange 3 and the plate 2 has an annular flange 4. Apartition plate 5 of a hemispherical contour with a radius intermediatethat of the plates 1 and 2 is mounted between the plates there being ahorizontally extending annul extending from the lower edge of the plate5. Over the plate 2 is a hemispherical housing'7 which has ahorizontally extending annular flange 8 from the outer edge of whichdepends a vertical rim 9.

A closure having a. dished body portion 10 with horizontally extendingflanges 11 is adapted to be secured at the bottom of the heater, formingan inclosed space beween the inner surface of the plate 1 and the dishedportion 10 of the closure. This space "provides an inclosed chamber inwhich may be mounted automatic controlling devices for the resistancecircuit.

The parts are matched together and retained 1n position as illustratedinFig- 1 by remova le bolts 12 passing through the flanges 11, 3, 4 and 8,thereby providing a means whereby the parts may be assembled withfacility.

Between the housing 7 and the upper face of the plate 2 is a quantity ofsome suitable heat non-conducting material 13, such as mineral wool,asbestos or thelike.

Depending from the apex of the plate 1 is a tubular extension 14constituting an inlet conduit adapted to be coupled to a supply conduit15. Extending upwardly from the apex of the plate 2 and integrallyformed therewith is a tubular extension 16 constituting an outletpassage ada ted to be connected into a service conduit 1 The passages 15and 17 constitute a main fluid supply, and the arrangement and design ofthe heater supply 14 and discharge 16 ermits the heater element to bemounte in this main supply line, whereby the same is supported and in.which the same may be connected without disturbing, to any extent, thenormal installation of a fluid supply in dwellings, or other buildings.

The inner surfaces of the plates 1, 2 and 5, as well as the conduits 14and 16 are coated with enamel, or other insulating material so that thecurrent for the resistance circuit cannot be short-circuited through theheater case.

The upper face of the plate 1 is provided with a series of spaced lugs18 and on the upper face of the plate 5 are a series of similar lugs 19,the lugs 18 and 19 being arranged at equal intervals on arcuate linesforming spaced tiers on the surfaces of the plates for supporting theresistance wire. The resistance wire 20 is continuous and is wound uponthe plate 1 and the plate 5, said plates constituting a core forsupporting the resistance circuit.

Adjacent to the lower edge of the plate 5 and disposed at intervals on acircumferential cross sectional line are a series of passages 21 throughthe plate 5. Thus a fluid entering the conduit 1 1 enters the chamberbetween the upper face of the plate 1 and the lower face ofthe plate 5and is deflected downwardly in a thin sheet to the bottom of the heater,from whence it passes through the passages 21 into the chamber betweenthe upper face of the plate 5 and the inner face of the plate 2, andflows upwardly to the discharge outlet 16 at the top of the heater.Thus, the volume of liquid, coming into contact with the resistance wirein its flow through the heater in a thin sheet, is readily heated and,discharging from the uppermost part of the heater, discharges at themaximum degree of temperature.

llhe resistance circuit is energized by an electrical supply circuitcomprising the leads 22 and 23, the lead 22 being attached to a terminalbinding post 24 connected to. one end of the stretch of resistance wireand the lead 23 being connected to a terminal bindingpost 25 connectedto the other end of the stretch of resistance wire.

An opening 26 is provided in the closure 10 for the accommodation of theleads 22 and 23 of the main electrical supply circuit.

I am aware that numerous changes in de-' sign and construction of theparts may be made without departing from the spirit and scope of theinvention. 1 do not desire to limit myself therefore to exact details,but

what I claim and desire to secure by Letters Patent is 1. An electricwater heater comprising a case including a fluid inlet and outletpassage, an outer wall deflected downwardly from said inlet passage, anouter wall deflected downwardly from said outlet passage spaced apartfrom said first-named wall, a partition wall intermediate said two wallsconforming to the contour thereof and having passages therethroughadjacent to the lower edge, a resistance circuit disposed in said casebetween said two first-named walls and said partition wall, and meansfor energizing said circuit, substantially as specified.

2. An electric water heater comprising a hemispherical bottom plate, aninlet passage in integral union with said bottom plate and opening atthe apex thereof, a hemispherical top plate having a greater radius thansaid first-named plate, an outlet passage in integral union with saidtop plate and extending insi ers upwardly from the apex thereof, ahemispherical partition plate of a radius substantially intermediate ofsaid first two-named plates disposed therebetween and having passagestherethrough adjacent to the lower edge thereof, a resistance circuitcomprising a continuous stretch of resistance wire arranged in a spiralform and wound upon said bottom plate and over said partition plate, andan electrical supply circuit forenergizing said resistance circuit,substantially as specified.

3. An electric water heater comprising a hemispherical bottom plate, aninlet passage in integral union with said bottom plate and opening atthe apex thereof, a hemispherical top plate having a greater radius thansaid first-named plate, an outlet passage in integral union with saidtop plate and extending upwardly from the apex thereof, a hemisphericalpartition plate of a radius substantially intermediate of said. firsttwonamed plates disposed therebetween and having passages therethroughadjacent to the lower edge thereof, lugs on the upper surface of saidbottom plate, lugs on the upper surface of said partition plate, aresistance, circuit comprising a continuous stretch of resistance wirearranged in spiral form andwound upon said bottom plate and over saidpartition plate and supported by said lugs in'spaced relationship, andan electrical supply circuit for energizing said resistance circuit,substantially as specified.

partition plate intermediate of said passages, an outlet passage fromthe chamber formed between the other of said exterior plates and saidpartition plate intermediate of said passages, whereby fluid enteringthe heateris deflected to theedges of said firstnamed chamber fromwhence it passes through said passages and flows to said outlet passage,and a stretch of resistance Wire disposed in the path of flow of thefluid, substantially as specified. 4 p

5. In an electric water heater, a heating chamber, comprising a bottomplate, an inlet passage integrally formed with said bottom plate, a topplate spaced from said firstnamed plate, an outlet passage integrallyformed with said top plate in axial alinement with said inlet passagethereby adapting the heater to be supported Within a supply conduit, apartition plate interposed between the inlet passage and the outlet assa'e assa 'es throu h said artition fleeted laterally from said inletpassage before entering said outlet passage, and a stretch of coiledresistance Wire disposed in the path of flow of the fluid passingthrough saidheater, substantially as specified.

6. In an electric water heater, a heating chamber, comprising a bottomplate, an inlet passage integrally formed with said bottom plate, a topplate spaced from said firstnamed plate, an outlet passage integrallyformediwith said top plate in axial alinement with said inlet passagethereby adapting the heater to be supported within a supply conduit, ahousing incasing the upper surface of said heater inclosing a quantityof heat'nonconducting material, a partition plate interposed between theinlet passage and the outlet passage, passages through said partitionplate spaced from the opening of said inlet passage thereby causing thefluid to be deflected laterally from said inlet passage before enteringsaid outlet passage, and a stretch of coiled resistance Wire disposed inthe path of flow of the fluid passing through said heater, substantiallyas specified.

7. The combination with a fluid inlet passage, of a downwardly deflectedplate formed integral therewith, an outlet passage in axial alinementwith said inlet passage, a downwardly deflected plate from said outletpassage having a greater radius than said first-named plate, wherebywhen said plates are assembled there is provided a space therebet'ween,a partition plate mounted between said first two-named plates, passagesin said partition plate remote from said inlet and outlet passages,.andheating means within the chamber formed by said first two-named plates,substantially as specified.

In witness whereof, I have signed this specification in the presence oftwo subscribing witnesses.

MAURICE SIMON.

Witnesses:

L. C. KINGsLANn, N. G. BUTLER.

